As far as I know from reviews of 32" versions FQ70 has picture in picture, extra picture processing, vertical image stabaliser, and remote control which sounds alarm when you lose it (press button on TV I think).
Don't get your hopes up too much about the remote option. It was referred to in the review I saw of the FX68 when referring to the extra features of the FQ70 against which comparison was being made. However having just looked again at the review of the FQ70 itself there is no mention of the feature, nor can I see any mention of it on the Sony site.
__________________ "All the technique in the world doesn’t compensate for the inability to notice." - Elliott Erwitt
"It's no good saying "hold it" to a moment in real life." - Lord Snowdon